Transport In Two Dimensional Gaas Electron Systems And A Sige Hole Gas

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Two Dimensional Electron Transport In Gan Gaas Based Heterostructures

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Author : Hailing Cheng
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2014-03

Two Dimensional Electron Transport In Gan Gaas Based Heterostructures written by Hailing Cheng and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03 with categories.

This book is on the fundamental studies of electron transport in different 2DEG systems. Electron transport in wide range of GaN samples were studied including in a high carrier density regime where a second conductive subband channel was occupied. The spin-orbit interaction were studied in the GaN heterostructures by using the weak antilocalization measurements. We also studied the energy relaxation processes in the GaN systems to understand the power dissipation. The second topic was electron dynamics on Quantum Hall liquid in GaAs system. We were able to study the Quantum Hall liquids in their deep insulating regime by using single electron transistors. The objective was to understand the charge motions in the quantum Hall liquid in an antidot structure, a particularly important structure for possible device applications in quantum computation. We have also shown that the response associated with the motion of electrons in the bulk of the integer quantum Hall layer could be enhanced by using multiple layers. This finding led us to a magnetometer application which was demonstrated by using a heterostructure with 25 identical multiple quantum wells.

Low Dimensional Electronic Systems

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Author : Guenther Neubauer
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-13

Low Dimensional Electronic Systems written by Guenther Neubauer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-13 with Technology & Engineering categories.

Owing to new physical, technological, and device concepts of low-dimensionalelectronic systems, the physics and fabrication of quasi-zero, one- and two-dimensional systems are rapidly growing fields. The contributions presented in this volume cover results of nanostructure fabrication including recently developed techniques, for example, tunneling probe techniques and molecular beam epitaxy, quantum transport including the integer and fractional quantum Hall effect, optical and transport studies of the two-dimensional Wigner solid, phonon studies of low-dimensional systems, and Si/SiGe heterostructures and superlattices. To the readers new in the field this volume gives a comprehensive introduction and for the experts it is an update of their knowledge and a great help for decisions about future research activities.

Electronic Quantum Transport In Mesoscopic Semiconductor Structures

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Author : Thomas Ihn
language : en
Publisher: Springer
Release Date : 2004-09-09

Electronic Quantum Transport In Mesoscopic Semiconductor Structures written by Thomas Ihn and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-09-09 with Science categories.

Opening with a brief historical account of electron transport from Ohm's law through transport in semiconductor nanostructures, this book discusses topics related to electronic quantum transport. The book is written for graduate students and researchers in the field of mesoscopic semiconductors or in semiconductor nanostructures. Highlights include review of the cryogenic scanning probe techniques applied to semiconductor nanostructures.

The Physics Of The Two Dimensional Electron Gas

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Author : J.T. Devreese
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

The Physics Of The Two Dimensional Electron Gas written by J.T. Devreese and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

The 1986 Advanced Study Institute on "The Physics of the two-Dimen sional Electron Gas" took place at the Conference Centre liTer Helme", close to Oostende (Belgium), from June 2 till 16, 1986. We were motivated to organize this Advanced Study Institute in view of the recent experimental and theoretical progress in the study of the two-dimensional electron gas. An additional motivation was our own theore tical interest in cyclotron resonance in two-dimensional electron systems at our institute. It is my pleasure to thank several instances and people who made this Advanced Study Institute possible. First of all, the sponsor of the Advanced Study Institute, the NATO Scientific Committee. Furthermore, the co sponsors: Agfa Gevaert, Bell Telephone Mfg. Co. N.V., Burroughs Belgium. Control Data. Digital Equipment Corporation, Esso Belgium. European Research Office (USA). Kredietbank. National Science Foundation (USA). Special thanks are due to the members of the Program Committee and the members of the Organizing Committee. I would also like to thank Mrs. H. Evans for typing assistance.

Gallium Arsenide And Related Compounds 1993 Proceedings Of The 20th Int Symposium 29 August 2 September 1993 Freiburg Im Braunschweig Germany

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Author : Günter Weimann
language : en
Publisher: CRC Press
Release Date : 1994-01-01

Gallium Arsenide And Related Compounds 1993 Proceedings Of The 20th Int Symposium 29 August 2 September 1993 Freiburg Im Braunschweig Germany written by Günter Weimann and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-01-01 with Technology & Engineering categories.

Gallium Arsenide and Related Compounds 1993 covers III-V compounds from crystal growth of materials to their device applications. Focusing on the fields of optical communications and satellite broadcasting, the book describes the practical applications for GaAs and III-V compounds in devices and circuits, both conventional and those based on quantum effects. It also discusses ultrafast GaAs transistors and integrated circuits, novel laser diodes, and tunneling devices, and considers the direction for future technologies. In addition, this volume addresses the increasing demands of ultra high speed systems that require careful selection of III-V materials to optimize the performance of electronic and optoelectronic components. It is ideal reading for physicists, materials scientists, electrical, and electronics engineers investigating III-V compound materials, properties, and devices.

Electron Transport In Gaas Heterostructures At Various Magnetic Field Strengths

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Author : Jeffrey Burnham Miller
language : en
Publisher:
Release Date : 2007

Electron Transport In Gaas Heterostructures At Various Magnetic Field Strengths written by Jeffrey Burnham Miller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

In the first set of experiments---the low-field experiments---we studied the effect of spin-orbit coupling. We tuned the strength of spin-orbit coupling from the weak localization regime to the antilocalization regime using in situ gate control. Using a new theory, we separately extracted the values for the three material-dependent spin-orbit constants. We also measured the average and variance of conductance in assorted quantum dots, with and without strong spin-orbit coupling, and found quantitative agreement with recent random matrix theory predictions, as long as we also properly included the effects of parallel magnetic field.

Spintronics Handbook Second Edition Spin Transport And Magnetism

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Author : Evgeny Y. Tsymbal
language : en
Publisher: CRC Press
Release Date : 2019-05-20

Spintronics Handbook Second Edition Spin Transport And Magnetism written by Evgeny Y. Tsymbal and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-20 with Science categories.

The second edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications.

Magnetotransport Study Of A High Mobility Two Dimensional Electron Gas

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Author : Girish Bohra
language : en
Publisher:
Release Date : 2009

Magnetotransport Study Of A High Mobility Two Dimensional Electron Gas written by Girish Bohra and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

This thesis is focused on an experimental study of the electrical properties of a two-dimensional electron gas formed in a GaAs/AlGaAs heterostructure. Low temperature magneto-transport measurements are used to characterize the carrier density and mobility of this system. An extensive study of the temperature and current dependence of quantum-mechanical transport effects, observable at very low temperatures, is performed in the temperature range of 4.2-100 K, for measurement currents in the range of 10 nA- 100℗æA. The well-known decrease in the amplitude of the Shubnikov-de Haas effect, and an accompanying increase in the onset magnetic field of these oscillations, with increasing temperature, as well as a simultaneous suppression of the quantum-Hall effect, is observed. Similar behavior is found on increasing the measurement current. An analysis of the insulator to quantum Hall transition (I-QH), occurring in the two-dimensional electron gas at low perpendicular magnetic fields, is also reported, along with the results of investigations of electron heating based on the measurements of the energy-loss rate. This study shows that the direct I-QH transition does not always correspond to the onset of strong localization, with clear Shubnikov-de Haas oscillations being observed in the insulating regime. A linear dependence of the electron energy-loss rate and electron temperature in the temperature range of 4.2-40 K is determined, indicating that the main mechanism for electron energy relaxation is acoustic phonon scattering.

Properties Of Iii V Quantum Wells And Superlattices

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Author : P. K. Bhattacharya
language : en
Publisher: IET
Release Date : 1996

Properties Of Iii V Quantum Wells And Superlattices written by P. K. Bhattacharya and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Electronic books categories.

A finely-structured, state-of-the-art review on controlled building of atomic-scale mutilayers, where nanometric structures based on III-V semiconductors have attracted particular attention.

Future Trends In Microelectronics

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Author : Serge Luryi
language : en
Publisher: John Wiley & Sons
Release Date : 2010-08-03

Future Trends In Microelectronics written by Serge Luryi and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-08-03 with Technology & Engineering categories.

In the summer of 2009, leading professionals from industry, government, and academia gathered for a free-spirited debate on the future trends of microelectronics. This volume represents the summary of their valuable contributions. Providing a cohesive exploration and holistic vision of semiconductor microelectronics, this text answers such questions as: What is the future beyond shrinking silicon devices and the field-effect transistor principle? Are there green pastures beyond the traditional semiconductor technologies? This resource also identifies the direction the field is taking, enabling microelectronics professionals and students to conduct research in an informed, profitable, and forward-looking fashion.